af84fcc25e406b269100f9c6098b6d537db7da6d614cd886d722efeb106b5a61

General

Target

ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
Size

1.9MB
MD5

ea76191518188f87a4ea648a2f719a11
SHA1

b5c37d64e4a13a4f5ef83e614697c649500df9ed
SHA256

af84fcc25e406b269100f9c6098b6d537db7da6d614cd886d722efeb106b5a61
SHA512

ba0525eefb86d9c0b570c13ae28e43fc82f90a79b7da624c0b70deb6c4aeaffa737d06bf7d6af5be729cde4fb58a64b46be3afcd8192da85a3276dd2c044b9a9
SSDEEP

12288:RFfwcHcu8pMkZ3Fn9d+Vd3SUZ+7EeI1x7f7V3+hT6DaRWz58kc+1xy8SyGP4Q:RJcu8pl9d+VdCUhN1SsNK+1pSyy4Q

Score

10^/10

aspackv2 discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x00090000000234a1-19.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
2416	fservice.exe
1724	services.exe

Loads dropped DLL 5 IoCs

pid	Process
1724	services.exe
1724	services.exe
1724	services.exe
2416	fservice.exe
4248	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fservice.exe	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	services.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
File opened for modification	C:\Windows\system\sservice.exe	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NET.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe

Runs net.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1724	services.exe
1724	services.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 2416	4248	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe	82
PID 4248 wrote to memory of 2416	4248	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe	82
PID 4248 wrote to memory of 2416	4248	ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe	82
PID 2416 wrote to memory of 1724	2416	fservice.exe	83
PID 2416 wrote to memory of 1724	2416	fservice.exe	83
PID 2416 wrote to memory of 1724	2416	fservice.exe	83
PID 1724 wrote to memory of 888	1724	services.exe	84
PID 1724 wrote to memory of 888	1724	services.exe	84
PID 1724 wrote to memory of 888	1724	services.exe	84
PID 888 wrote to memory of 4016	888	NET.exe	86
PID 888 wrote to memory of 4016	888	NET.exe	86
PID 888 wrote to memory of 4016	888	NET.exe	86

C:\Users\Admin\AppData\Local\Temp\ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ea76191518188f87a4ea648a2f719a11_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Windows\services.exe
    C:\Windows\services.exe -XP
    3⤵
    - Modifies WinLogon for persistence
    - Adds policy Run key to start application
    - Boot or Logon Autostart Execution: Active Setup
    - Executes dropped EXE
    - Loads dropped DLL
    - Modifies WinLogon
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1724
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:888
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

4

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\fservice.exe

Filesize
1.9MB

MD5
ea76191518188f87a4ea648a2f719a11

SHA1
b5c37d64e4a13a4f5ef83e614697c649500df9ed

SHA256
af84fcc25e406b269100f9c6098b6d537db7da6d614cd886d722efeb106b5a61

SHA512
ba0525eefb86d9c0b570c13ae28e43fc82f90a79b7da624c0b70deb6c4aeaffa737d06bf7d6af5be729cde4fb58a64b46be3afcd8192da85a3276dd2c044b9a9

Download Submit
C:\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\SysWOW64\winkey.dll

Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
memory/1724-37-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-41-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-21-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1724-61-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-59-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-57-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-34-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/1724-36-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1724-35-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-55-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-39-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-17-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/1724-43-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-45-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-47-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-49-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-51-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/1724-53-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2416-32-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2416-8-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/4248-0-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/4248-33-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads